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操作系统通过进程调度实现对进程控制的模拟
资源介绍
用于进程控制模拟
#include
#include
#include
#include
#include
#include
#include
#include "ggg.h"
#include "os.h"
#include "menu.h"
void draw_bar()
{ int y,color,yy;
setbkcolor(HiColor(BK_COLOR));
rect(0,0,SCREEN_W-1,SCREEN_H-1,HiColor(0xC0C0C0));
for (color = 652, y = 92,yy=1; y <121; ++y, color += 2048,++yy)
{
hline(1,yy,480,color);
}
/* rectfill(1, 1, 480, 30,HiColor(0xFFFFFF)); */
line(481,1,481,430,HiColor(0xFFFFFF));
hline(1,434,SCREEN_W-2,HiColor(0xFFFFFF));
}
char *input(char *text)
{
char *in;
int i=0;
in=calloc(12,sizeof(char));
showMessage(text);
in[i]=getch();
while(in[i]!=13)
{
rectfill(5, 455, 5+(8*10), 455, HiColor(BK_COLOR));
string_out(in,5,450);
vsync();
i++;
if(i>10){
return 0;
}
in[i]=getch();
}
in[i]=0;
return in;
}
#define PCB_W 60
#define PCB_H 20
#define PCB_LEFT 30
#define LINE_H 10
void draw_PCB(int start_x,int start_y,int end_x,int end_y,int color,PCB *p,int text_color)
{
set_str_color(HiColor(text_color));
rectfill(start_x+PCB_LEFT,start_y+LINE_H,end_x-PCB_LEFT,end_y,color);
line(start_x+PCB_LEFT+(PCB_W/2),start_y,start_x+PCB_LEFT+(PCB_W/2),start_y+LINE_H,0);
if(p->hasname==1)
textout(p->name,start_x+PCB_LEFT,start_y+LINE_H+5);
set_str_color(1);
}
void draw_PCB_point(PCB_point *p)
{
int i=0;
int start_x,start_y;
char c;
PCB *temp;
rectfill(p->start_x,p->start_y,p->end_x,p->end_y,HiColor(BK_COLOR));
temp=p->next;
set_str_color(HiColor(0x00ff00));
string_out(p->name,p->start_x+10,6);
for(i=0;inum;i++)
{
start_x=p->start_x;
start_y=p->this_y;
draw_PCB(start_x,start_y,p->end_x,start_y+PCB_H+LINE_H,p->color,temp,p->text_color);
p->this_y=start_y+PCB_H+LINE_H;
temp=temp->link;
}
set_str_color(1);
itoa(p->num,c,10);
string_out(c,p->this_x,p->this_y);
}
char *show_input()
{
char *n,*p;
n=input("请输入进程名:");
p=calloc(100,sizeof(char));
strcpy(p,"输入数据成功，你输入的数据为: ");
strcat(p,n);
showMessage(p);
return n;
}
void reset_this(PCB_point *p)
{
p->this_x=p->start_x;
p->this_y=p->start_y;
}
void create_proess()
{ char *text;
scare_mouse();
showMessage("\nplease input text:");
/*text=(char *)malloc(100);*/
text=show_input();
create(text);
unscare_mouse();
}
void keymode()
{
char choice;
char *msg;
/*printf("start:\n"); */
PCB_point_init();
while(1)
{
reset_this(freelist);
reset_this(runlist);
reset_this(runablelist);
reset_this(blocklist);
draw_PCB_point(freelist) ;
draw_PCB_point(runlist) ;
draw_PCB_point(runablelist) ;
draw_PCB_point(blocklist) ;
showMessage("请输入操作指令：");
choice=getch();
switch(choice)
{
case 'c':
create_proess();
break;
/*case 's':
list();
break;*/
case 'p': dispatch();
break;
case 't': timeout();
break;
case 'b': block();
break;
case 'w': wakeup();
break;
case 'e':
quit_PCB();
break;
case 'x': exit(0);
}
}
}
void quit()
{
exit(0);
}
#define BUTTON_W 80
#define BUTTON_H 30
void init_menu()
{
button *b;
btinsert(createbutton(521,30,521+BUTTON_W,30+BUTTON_H,"创建进程",create_proess));
btinsert(createbutton(521,90,521+BUTTON_W,90+BUTTON_H,"调度进程",dispatch));
btinsert(createbutton(521,150,521+BUTTON_W,150+BUTTON_H,"阻塞进程",block));
btinsert(createbutton(521,210,521+BUTTON_W,210+BUTTON_H,"唤醒进程",wakeup));
btinsert(createbutton(521,270,521+BUTTON_W,270+BUTTON_H,"时间片到",timeout));
btinsert(createbutton(521,330,521+BUTTON_W,330+BUTTON_H,"结束进程",quit_PCB));
btinsert(createbutton(521,390,521+BUTTON_W,390+BUTTON_H,"退出程序",quit));
b=btlist->next;
while(b!=NULL)
{
button_fill(b);
b=b->link;
}
}
void update(PCB_point *t)
{
if(t->changed)
{
reset_this(t);
draw_PCB_point(t) ;
t->changed=0;
}
}
void main()
{
char *n,*p;
PCB_point *li;
neo_init();
set_vbe_mode(VBE640X480X64K);
install_timer(new_1ch_int);
/*change_timer(50); */
/*set_cn_size(0); */
install_mouse();
/*设置鼠标移动范围*/
set_mouse_range(0, 0, SCREEN_W, SCREEN_H);
draw_bar();
PCB_point_init();
/*
keymode();
draw_PCB(0,31,120,31+PCB_H+LINE_H,HiColor(0xFF0000));
li=(PCB_point *)malloc(sizeof(PCB_point));
set_PCB_point(li,NULL,10,10,0,31,120,431,HiColor(0xFF0000));
draw_PCB_point(li) ; */
init_menu();
while(1){
update(freelist);
update(runlist);
update(runablelist);
update(blocklist);
mouse_refresh();
chk_mouse();
LOOP_END_OF_TIMER();
}
showMessage("按任意键退出！");
getch();
quit();
}
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